> If there are publicly-available records that link you to a phone number because you used to use it, then you should be able to delete the current account which is used by the current owner of it?
You're talking about someone who is using my whatsapp account because they managed to get a phone number I used to use?
Yes, of course I should have control over my account, regardless of who else happened to hack into it.
No, I think the parent is about a number you had, and then abandoned, and it's now somebody's else's number. Phone numbers don't come with the guarantee of only one user given enough time.